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A075441 a(n) is the number of solutions to the n-term Znam problem. 1
0, 0, 0, 2, 5, 18, 96 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,4

COMMENTS

Three results are missing for a(7) in Eric Weisstein's World of Mathematics: [2, 3, 7, 43, 3263, 4051, 2558951] [2, 3, 11, 25, 29, 1097, 2753] [2, 3, 13, 25, 29, 67, 2981]. - Du, Zhao Hui, Jan 24 2010

LINKS

Table of n, a(n) for n=2..8.

Du, Zhao Hui, all results for a(8) [Broken link]

Eric Weisstein's World of Mathematics, Znam's Problem

CROSSREFS

Cf. A075461.

Sequence in context: A217389 A123310 A058119 * A187008 A075634 A007127

Adjacent sequences:  A075438 A075439 A075440 * A075442 A075443 A075444

KEYWORD

nonn,more,hard

AUTHOR

Eric W. Weisstein, Sep 16 2002

EXTENSIONS

a(7)-a(8) corrected by Du, Zhao Hui, Jan 24 2010

STATUS

approved

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Last modified August 27 15:19 EDT 2015. Contains 261092 sequences.